Klaus Kubitzki

Klaus Kubitzki (3 May 1933 – 5 December 2022) was a German botanist. He was Emeritus professor in the University of Hamburg, at the Herbarium Hamburgense. He is known for his work on the systematics and biogeography of the angiosperms, particularly those of the Neotropics, and also the floristic record of the Tertiary era. His plant systematic work is referred to as the Kubitzki system. He was a member of the American Society of Plant Taxonomists. Provided by Wikipedia